Amiga Virus Encyclopedia - Virus Help Team

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Types of Amiga Viruses

A computer virus is one type of malware that inserts its virus code to multiply itself by altering the programs and applications. The computer gets infected through the replication of malicious code. Computer viruses come in different forms to infect the system in different ways. Find some of the most common type of computer viruses here.

A computer virus spreads through removable media, internet downloads, and e-mail attachments. In other words, a virus spreads while the user is viewing an infected advertisement, opening the attachment in the email, or clicking on an executable file. Besides that, connecting with an already infected removable storage device such as a floppy disk drive also spreads the infection.

There are two ways by which a virus operates; the first type starts replicating itself as soon as it lands on the computer; the second type remains dormant until it is triggered. Therefore, it is essential to install robust antivirus software on a computer to steer clear of all such threats.



Bootblock Virus
This type of virus infects the master boot record and it is challenging and a complex task to remove this virus and often requires the system to be formatted. Mostly it spreads through removable media, like a floppy drive.
Example: SCA Virus
File Virus
A type of computer virus that inserts its malicious code into executable files on a system. When the infected file is opened or used the virus may overwrite the file and cause permanent damage to the content of the overwritten file.
Example: Jeff Butonic Virus
Link Virus
This common virus inserts malicious code into executable files — files used to perform certain functions or operations on a system. A very common link virus on the Amiga even to this date, is the 'Happy New Year' virus string.
Example: Happy New Year Virus


System Virus
This is a general term for any virus that inserts itself in a computer system’s memory. A resident virus can execute anytime when an operating system loads. The most commom is 'Saddam Disk-Validator' virus string.
Example: Saddam Virus
Multipartite Virus
This type of virus spreads through multiple ways. It infects both the boot sector and executable files at the same time.
Example: CCCP Virus



Trojan
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users systems. Or even delete some or all files on the computer.
Example: Lurad trojan


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